/**
 * Description:
 * Class Name:Shape
 * Date:2022/3/24 15:10
 *
 * @author LTisme
 * @version JAVA17
 */
package 疯狂Java讲义.第9章_泛型._9_3_类型通配符._9_3_2_设定类型通配符的上限;

// 定义一个抽象类Shape
public abstract class Shape {
    public abstract void draw(Canvas c);
}
